Toro 34230 - Sprayer Nozzle Testing; Testing Sprayer Nozzle Discharge

TestingtheSprayerNozzleDischarge
Operatorsuppliedequipment:Haveastopwatch
capableofmeasuring±1/10secondandacontainer
graduatedin50ml(1oz)increments.
Note:Ensurethatthespraysystemiscleanand
thereis1/2tankofcleanwater.
1.Engagetheparkingbrakeandstarttheengine.
2.Setthesprayer-pumpswitchtotheONposition.
3.Pullthetank-agitationlevertostartthetank
agitation.
4.MovethethrottletotheFASTposition.
5.Pushthetank-agitationlevertotheOFFposition.
Note:Shutofftheagitationtoensureproper
spraypressureanddistribution.
6.Usethesprayer—pumpswitchtoadjustthe
sprayer-systempressureto40psi(2.8bar).
Note:Theredandwhitenozzlesinstalledon
thissprayerhaveanormaloperatingpressure
of40psi(2.8bar).
7.Alignthegraduatedcontainerundereachnozzle
for19.7seconds.
Note:Recordtheamountofwatercollected
fromeachnozzleinthecollectionworksheet.
g027502
Figure51
1.Graduatedcontainer
2.Personalprotective
equipment—chemical
resistantgloves
CollectionWorksheet
Leftsprayer
nozzle
Centersprayer
nozzle
Rightsprayer
nozzle
Test
1
ml(oz)ml(oz)ml(oz)
Test
2
ml(oz)ml(oz)ml(oz)
Test
3
ml(oz)ml(oz)ml(oz)
8.Repeatteststep7foreachnozzleanadditional
2times.
9.Setthesprayer-pumpswitchtotheOFFposition.
10.Calculatetheaveragequantityofwater
dischargedforeachnozzle;useaverage
dischargeformula.
AverageDischargeFormula
Formula
test1+test2
+test3
3
=
Theaveragespray
nozzledischargein
19.7seconds
475ml(16.05
oz)+507ml
(17.15oz)+504
ml(17.05oz)
Example
center
nozzle—narrow
pattern(red)
3
=
0.49L(16.75oz)
•Rightnozzle—recordthe
averagedischargequantityhere:
.
•Centernozzle—recordthe
averagedischargequantityhere:
.
•Leftnozzle—recordtheaveragedischarge
quantityhere:
.
ConvertingtheTimeandCollectionResults
toFlowRate
1.Convertthemilliliters(uidounce)quantities
thatyoucalculatedinstep10ofTestingthe
SprayerNozzleDischarge(page41)toliters(US
gallons)usingthequantityconversionformula.
Note:1L=1000ml
1USgallon=128oz
QuantityConversionFormula
Formula
Result(X)ml(oz)
0.1L(128oz)
=
(X)L(USgallon)
490ml(16.75oz)
Example
center
nozzle—narrow
pattern(red)
0.1L(128oz)
=
0.49L(0.13US
gallon)
41